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atomic emission

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Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001729
EISBN: 978-1-62708-178-8
... Abstract Inductively coupled plasma atomic emission spectroscopy (ICP-AES) is an analytical technique for elemental determinations in the concentration range of major to trace based on the principles of atomic spectroscopy. This article provides a description of the basic atomic theory, and...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001730
EISBN: 978-1-62708-178-8
... Abstract Atomic absorption spectrometry (AAS) is generally used for measuring relatively low concentrations of approximately 70 metallic or semimetallic elements in solution samples. This article describes several features that are common to three techniques, namely, AAS, atomic emission...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001728
EISBN: 978-1-62708-178-8
... Abstract This article discusses the general principles, optical systems, and emission sources of optical emission spectroscopy for elemental analysis. Changes in the energy of the valence or outer shell electrons result in the atomic lines used in emission spectroscopy. Each possible...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006647
EISBN: 978-1-62708-213-6
... Abstract This article provides a clear but nonexhaustive description of the general principle of atomic emission, with a particular focus on instrumentation, and summarizes the main characteristics of the inductively coupled plasma optical emission spectrometer technique. Basic atomic theory as...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006126
EISBN: 978-1-62708-175-7
..., sulfur, carbon, or nitrogen Poorer sensitivity for refractory oxide or carbide-forming elements than plasma atomic emission spectrometry Basically a single-element technique (a) XRPD, X-ray powder diffraction. (b) ICP-AES, inductively coupled plasma atomic emission spectroscopy. (c) AAS...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006653
EISBN: 978-1-62708-213-6
... bandwidth of the instrumentation be comparable ( Ref 7 ). This was accomplished by using atomic line emission sources such as hollow cathode lamps ( Ref 1 , 8 ) for metals and electrodeless discharge lamps ( Ref 9 ) for more volatile elements (e.g., metalloids and some nonmetals). The construction of these...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006640
EISBN: 978-1-62708-213-6
.... , Atomic Spectra and Atomic Structure , Dover , 1944 • Payling R. , Jones D. , and Bengtson A. , Ed., Glow Discharge Optical Emission Spectrometry , J. Wiley & Sons , 1997 • Singh J.P. and Takhur S.N. , Laser-Induced Breakdown Spectroscopy , Elsevier B.V...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001734
EISBN: 978-1-62708-178-8
... method of excitation and the nature of x-ray detection. The excitation source creates inner electron shell atomic vacancies that cause x-ray emission when filled by outer electrons. X-ray fluorescence (XRF) uses x-rays for this purpose; electrons are used to cause vacancies in electron microprobes and...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006666
EISBN: 978-1-62708-213-6
...-ray detection. The excitation source creates inner electron shell atomic vacancies that cause x-ray emission when filled by outer electrons. X-ray fluorescence (XRF) uses x-rays for this purpose; electrons are used to cause vacancies in electron microprobes and some scanning electron microscopes...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003057
EISBN: 978-1-62708-200-6
.... Chemical analysis is carried out by X-ray fluorescence spectrometry, atomic absorption spectrophotometry, and plasma-emission spectrophotometry. Phase analysis is done by X-ray diffraction, spectroscopic methods, thermal analysis, and quantitative analysis. Techniques used for microstructural analysis...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006678
EISBN: 978-1-62708-213-6
... emission spectroscopy, high-temperature combustion, and inert gas fusion. This is followed by a section on techniques for determining the atomic structure of crystals, namely X-ray diffraction, neutron diffraction, and electron diffraction. Types of electron microscopies most commonly used for...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006367
EISBN: 978-1-62708-192-4
... reduction in friction ( Ref 16 ). A different line of work involves self-lubricating ceramic composites containing silicon nitride and graphite. This work, involving various groups ( Ref 17 ), is aimed at reducing diesel engine emissions due to oil emerging from valve guides. In retrospect, Peter J. Blau...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001749
EISBN: 978-1-62708-178-8
... represents the number of parent atoms present at t = 0. Alpha-particle decay of a radioactive isotope is the emission of an α-particle (or helium nucleus) from the nucleus of the decaying atom. The nucleus thus loses 4 atomic weight units and decreases in atomic number by 2. This decay mode is common...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002363
EISBN: 978-1-62708-193-1
... annihilation Residual life estimation and fatigue damage in the laboratory Acoustic emission Laboratory and in-field testing Ultrasonics Laboratory and in-field testing Eddy current Laboratory and in-field testing Infrared Laboratory and in-field testing Exoelectrons Residual life...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001336
EISBN: 978-1-62708-173-3
... cathode surface in an actual weld, facilitates the discharge with a source of lower work function electrons. When the oxide layer is very thin (on the order of one atom layer), emission occurs via a tunneling mechanism through the film to an emitting site. Thicker oxide films exhibit locally conducting...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006442
EISBN: 978-1-62708-190-0
... Abstract This article discusses the principles and limitations of micromagnetic techniques, namely, magnetic Barkhausen noise (MBN) and magnetoacoustic emission (MAE). It also discusses various factors limiting the establishment of acceptance criteria for test components as they pertain to the...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006065
EISBN: 978-1-62708-175-7
... Table 1 Typical chemical analyses of atomized aluminum powders Type of powder Composition, wt% Other metallics Aluminum Iron Silicon Each Total Atomized powders Typical 99.7 … … … … Maximum … 0.25 (a) 0.15 (a) 0.05 0.15 (a) High-purity atomized...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001772
EISBN: 978-1-62708-178-8
... Abstract Field ion microscopy (FIM) can be used to study the three-dimensional structure of materials, such as metals and semiconductors, because successive atom layers can be ionized and removed from the surface by field evaporation. The ions removed from the surface by field evaporation can...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006766
EISBN: 978-1-62708-295-2
... determined from light emitted from atoms excited to a higher energy state. Free atoms, when placed in an energetic environment, emit light at a series of narrow wavelength intervals. These intervals, termed emission lines, form a pattern—the emission spectrum—that is characteristic of the atom generating it...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006400
EISBN: 978-1-62708-192-4
... analysis, acoustic emission testing, temperature monitoring, motor current signature analysis, and ultrasound emission. The article describes the evolution of condition-based maintenance in CM. It also describes the basics of integrated vehicle health management, a capability that enables a number of...